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(N0 Model.) 2 Sheets-Sheet 1.`

` B.H.LUNKBN. TOOL POR APPLYING QR REMOVING yIHINEWABLE SEATS INvSTRAIGHTWMI-v VALVBSV. No. 513-. l anl..23. 194v..1

, (No Model.) Sheets-Sheet 2.

BH.LUMUJN. TOOL FOR APPLYING 0R REMOVING RENEWABLE SEATS IN STRAIGH'IWAYVALVES. l

No. 513,121. PatenteJan. 23,w 1894.

Nrrn-D STATES'.

'PATENT OFFICE.

EDMUND H. LUNKEN, OF CINCINNATI, OHIO, ASSIGNOR TO THE LUNKEN= HEIMERCOMPANY, OF SAME PLACE.

TOOL FOR APPLYING 0R REMOVING RENEWABLE SEATS IN STRAIGHTWAY-VALVES.

SPECIFICATION forming part of Letters Patent No. 513,121, dated January23, 1894.

Application filed April 17, 1893. Serial No. 470,654 (N0 model.)

To all whom it may concern..-

Beit known that I, EDMUND H. LUNKEN, a citizen of the United States,residing at Cincinnati, in the county of Hamilton and State of Ohio,haveinvented a certain new and useful Tool for Applying or RemovingRenewable Seats in Straightway-Valves, of which the following is adescription, reference being had to the accompanying drawings, formingpart of this specification.

My novel tool is designed for use in applying and removing renewableseats in straightway valves without disconnecting such valves from thelines of pipe in which they are located. It is intended moreparticularly for use in connection with straight-way valves havingrenewable seats such as shown and described in Letters Patent No.494,579, granted to me April 4, 1893, 'though it may beemployed inapplying and removing similar renewable seats in other forms of valves.

In the -accompanying drawings Figure l represents an end elevation of avalve containing a renewable seat similar to that shown in my aforesaidLetters Patent; Fig. 2 a middle vertical section of thesamelongitudinally of the passage through the valve; Fig. 3 a per-vspective view` of my novel tool in one position; Fig. 4 a similar viewof it in another position; Fig. 5 a perspective view of one form ofrenewable seat for the valve; Fig. 6 a view of the valve located in aline of piping, and having its bonnet or hood and valve-stem and diskremoved, and my novel tool insertedyin the body of the valve in positionto unscrew the renewable seat; Fig. 7 a perspective view of the toolwith a loose renewable seat placed thereon ready to be inserted in thevalve; Fig. 8 a view of the valve corresponding to that in Fig. 6, withthe tool holding the renewable seat in position to be screwed into itsseat in the valve, and with asharp-pointed instrument acting upon themilled edge of the renewable seat to startit in position; and Fig. 9 aperspective view of a modified form of the tool.

The same letters of reference are used to indicate identical-parts inailthe figures.

Inasmuch as the tool to which my present invention relates is designedparticularly for body A is formed into a rectangularseat upon t whichrests the bonnet or hood C of the casing, the interior of the bodycommunicating with the interior of the bonnet bya longnarrow openingthrough which the valvedisk is lifted into the bonnet when the valve isopened. The top ot' the bonnet is formed into a verti-` cal neck D, inthis instance tubular in form and having the convex surfaces of' itsopposite sides continued down the opposite faces of the bonnet to theflange at the lower edge of the latter. At the opposite sides of thebonnet are two laterally projecting ears E E through which pass theupper ends of a U -shaped clip F which surrounds the body A of the valveand has nuts G G screwed upon its upper ends and bearing against theears E E to bind the bonnet and body portion of the valve together. Thevalve-stem H extends vertically through the neck D of 'the bonnet tothe'bottom of the latter and has loosely coupled to its lower end thedisk I. Near its lower end it is provided with a rthreaded portion Jwhich engages threads upon the opposite inner faces of the bonnet andneck D, so that the turning of the valve-stem will cause it and the diskcarried by it to be raised and lowered. The valvestem has a handle Kfast upon its upper end, for turning it, and the neck D of the bonnethas a cap-nut L screwed upon its upper end and confining the packingaround the valvestem. The disk I co-operates with a renewable seat M.which has a reduced exteriorlythreaded portion by which it is screwedinto position in the body of the valve. A wedging piece N fitted in agroove in the body of the valve co-operates with the side of the disk Iopposite the seat M and'serves to force the disk against its seat whenit is lowered by ing at one edge a laterally projecting flangel theturning of the valve-stem. As seen more IOO Iov

P provided with a roughened or milled edge, and having formed upon itsinner surface a series of lugs Q.

From the foregoing description it will be seen that in assembling theparts of the valve the seat M might be inserted through the long narrowopening in the upper side of the valve body and tted in position andscrewed into the body by a tool inserted through one of thepipe-connections; so, too, after the valve has been used if the seatshould become worn and it be desired to replace it witha new one thevalve could be removed from the line of pipe in which it was located,the seat uuscrewed by means of a tool inserted through one of the pipeconnections, the bonnet of the valve removed and the seat taken out anda new one inserted and fixed in place; but it is often exceedinglyinconvenient to remove a valve from the pipe in which it is located, forthe purpose of putting in a new seat, and if the valve be not removedfrom the pipe the only access which can be had to its interior isthrough the long narrow opening in the upper side of the valve, as seenin Fig. 6, and it is extremely difficult, if not practically impossible,to remove and apply the renewable seats through this opening without atool specially designed for the purpose.

My present invention has for its object the production of a tool forthis purpose, by which the old seats may be readily removed and replacedby new ones without disconnecting the valve body from the line of pipein which it is located. y

My novel tool consists of two parts, one for removing the seat from thevalve, and the other for applying it to the valve. These two parts areformed upon or secured to the same handle, and hence I refer to myinvention as a single tool, but they may be upon different handles andin that event constitute two separate tools. The portion of the tool tobe emp loyed for removing the seat from the valve may be called aWrench, and consists in this instance of a three-armed plate R locatedupon one end of the handle S, Fig. 3. This plate is of suflicientthickness or projects above the surface of the handle S far enough tocause it to stand in the plane of the lugs Q upon the inner surface ofthe ring of the valve-seat M when the latteris placed flangedenddownward upon the handle S and over the plate R. The plate R is also ofsuch shape that the extremities of its three arms will t between thelugs upon the inner surface of the valve-seat, so that the seat may beturned by turning the handle. The plate R may be of any other suitableshape (in my patent heretofore referred to a straight or two-armed plateis shown), or separate proj ections upon the handle S may be substitutedfor the single plate and made to engage the inner surface of the seat Mat either more orY less than three points.

To remove a seat from a valve in a line of pipe by means of this wrenchportion of the tool, the bonnet of the valve is Iirst removed and thewrench then inserted through the narrow opening in the Valve body, asseen in Fig. 6, and its plate R or equivalent projections engagedwiththe lugs upon the inner surface of the valve-seat. Upon thensuccessively vibrating the handle and disengaging and re-engaging thewrench with the seat the latter may be unscrewed from the body andremoved, as will be readily understood. The handle S is bent at T toenable it to clear the ends of the clip F and permit it to be vibratedbackward and forward the full length of the opening in the valve body.

The portion of the tool employed for applying the seat to the valveconsists of a handle provided upon one end with a bearing upon which theloose seat may freely revolve and by which the seat may be held inposition for the threads upon its exterior to engage the threads in theValve body while the seat is turned, to cause such engagement, by meansof some pointed instrument inserted through the narrow opening in thevalve body and caused to act upon the milled edge of the flange of theseat to turn the latter. This bearing for supporting the seat andpermitting it to be turned by such instrument may be either a fixedbearing upon the handle, upon which the seat may be turned, or it may bea rotary bearing carried by the handle and turning with the seat. In mypreferred construction it consists simply of a ring U (though it couldas well be a solid disk) formed upon the surface of the handle S at theopposite end from the wrench R, and in this instance upon the oppositeface of the handle. When the seat is to be applied to the valve itisplaced upon the handle around this ring, as seen in Fig. 7, and is theninserted through the narrow opening in the valve body and adjusted toand held in position for the threads upon it to engage the threads inthe Valve body, and is then turned, to cause such engagement, by meansof a pointed instrument, such as V, inserted through the opening in thevalve body and engaged with the milled edge of the flange of the seat.After the seat has been turned in this manner sufficiently to engage itsthreads with those in the valve body, so that the seat will be held inposition, the handle is removed from the valve body and its oppositewrench-end then inserted and engaged with the lugs upon the innersurface of the seat and the latter then Iirrnly screwed into position inthe same manner that the seat was removed by means of the wrench, aswill be readily understood.

In Fig. 9 I have shown a rotary bearing for supporting the valve-seatwhile it is being turned with the pointed instrument, instead of thefixed ring U above described, said ro tary bearing consisting of athree-armed plate W, similar in shape to the wrench plate R at theopposite end of the handle, but pivoted to the handle at its centerinstead of being rigidly secured thereto. The loose seat may besupported and held in position by this rotary bearing, while it is beingturned by the pointed instrument, in the same manner as 'it was turnedby the fixed annular bearing before described.

From the foregoing description it will be seen that by means of my noveltool an old or worn seat in a valve may be readily removed therefrom anda new seat applied and rmly secured in its place, Without disconnectingor removing the valve from the line of pipe in which it may be located.

So far as I am aware I am the rst in the art to accomplish thisdesirable result in any manner or by any means whatsoever, and myinvention is therefore not restricted to any particular shape orconstruction of the novel tool which I have invented for this purpose,but contemplatesall variations in its form so long as it operates inconnection with the removable seat in the manner described.

Having thus fully described myinvention, I claim- 1. The hereindescribed tool for removing and applying renewable seats in straight-wayvalves-through the bonnet-openings thereof, consisting of ahandle Shaving formed or sccured upon one side at its end the flat multiarmedwrench plate R projecting above the surface of the handle and adapted tobe inserted through the bonnet opening of the valve and engageprojections at different points upon the inner periphery of the valveseat, substantially as and for the purpose described.

2. The herein described tool for applying renewable seats tostraight-way valves through the bonnet-openings thereof, consisting of ahandle provided upon one side at its end with a bearing shaped toreceive and be encircled by the valve seat and permit the latter to befreely turned and removed therefrom, said tool being adapted to beinserted with the valve seat through the bonnet-opening and to hold thevalve seat in position While it is turned to engage its threads withthose in the valve body, substantially as and for the purpose described.

3. The herein described tool for applying renewable seats tostraight-way valves through the bonnet-openings thereof, consisting of'a handle having formed or secured upon one side at its end a fixedcircular bearing to receive and be encircled by the valve seat andpermit the latter to be freely turned and removed therefrom, said toolbeing adapted to tion while it is turned to engage its threads y withthose in the valve body, substantially as and for the purpose described.

4. The herein described tool for applying renewable valve-seats tostraight-way valves, consisting of a handle S provided upon its sidenear one end with a bearing upon which the valve-seat may be itted andfreely turned, and upon its side near its opposite end with awrench-portion, said tool being shaped to adapt its end having thebearing to be inserted with the valve-seat through the bonnet-openingand to hold the seat in position while it is turned to engage itsthreads with those in the valve-body, and to have its opposite end theninserted through the bonnetopening and its wrench-portion engaged withthe projections upon the inner surface of the valve-seat to screw thelatter into the valvebody, substantially as and for the purposedescribed.

5. The herein described tool for applying renewable seats tostraight-way valves through the bonnet-,openings thereof, consisting ofa handle having formed upon its side near oneV end a fixed circularbearing upon which the valve-seat may be pivoted and freely turned, andhaving a wrench-portion Rformed upon its side near its opposite end,said tool being shapedto adapt its end having the bearing to be insertedwith the valve-seat through the 1 bonnet-opening and to hold the seat inposition while it is turned to engage its threads 'with those in thevalve-body, and to then have its opposite end inserted through thebonnetopening and its wrench-portion engaged with projections upon theinner surface ofY the valve-seat, substantially as and for the purposedescribed.

6. The herein described tool for removing and applying renewable seatsin straight-way valves, consisting of the handle S bent at T and havingupon one end the three-armed wrench-plate R and upon its opposite endthe fixed circular bearing U, the wrench-plate and bearing being adaptedto co-ope'rate with the valve-seat in the manner and for the purposedescribed.

EDMUND H. LUNKEN.4 Witnesses:

EDWARD RECTOR, ALBERT H. MEADs.

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